Tuelip metal water bottles. Sturdy construction: which is rust proof. Usage: use your bottle for tea, coffee, juice, etc. Pre-condition your bottle with hot water, if using for hot beverages and with cold water if using for cold beverages. Do not use for carbonated drinks cleaning instructions: wash inside out with mild detergent. Use a brush for cleaning the inside. Do not use strong detergents, bleach or cleansers containing chlorine. When not in use keep the bottle lid open to avoid odour.